For me knots are embedding of $S^1$ in $\mathbb{R}^3$.
I have following questions:
- Will knots have infinite crossing?
- If so, Why are we considering only knots with finite crossing ?
Can someone elaborate aes answer on the question :Is there any knot showing infinitely many crossings?
As answered in the topic you linked, there are knots with infinite many crossings in a diagram. For example wild knots, and some people consider them. The reason the finite case is much more popular is that any smooth knot has a diagram with finite number of crossings, and any diagram has all information about a knot.